* - AVK International

For water, ductile iron/ductile iron, DN100 and 200-300

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AVK headquater in Skovby Galten, Denmark

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AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Combination air valve for water and neutral liquids to max. 60°C (temporarily up to 90°C)

AVK combination air valves are combined automatic and air vacuum valves. The automatic air release function releases accumulated air from the system while it is under pressure. The air and vacuum function discharges and admits large volumes of air during the filling or draining of pipelines. The valve will open to relieve negative pressures whenever water column separation occurs.

Variant 701/60-020
Connection:	Flanged
Material:	Ductile Iron
DN:	DN100 - DN300
PN:	PN16

Features

Orifice sizes: Air and vacuum DN 100: 3317 mm² – automatic 12 mm². Air and vacuum DN 200: 17662 mm² – automatic 12 mm². Air and vacuum DN 250: 31400 mm² – automatic 12 mm². Air and vacuum DN 300: 49087 mm² – automatic 12 mm².
The enlarged orifice is less exposed to obstruction by debris
The large orifice in the automatic valve releases large volumes of air at high flow rates when the line is under pressure
The automatic valve’s rolling seal mechanism design is less sensitive to different pressures than a direct float seal, thus enabling a one size orifice for a wide pressure range
Reliable operation reduces water hammer incidents
Dynamic design allows for high velocity air discharge while preventing premature closure
Special orifice seat design with a combination of bronze and EPDM rubber ensures long-term maintenance-free operation
The discharge outlet enables removal of excess fluids
Air and vacuum air valve with body and cover of ductile iron with blue fusion bonded epoxy coating in compliance with DIN 3476 part 1 and EN 14901
Automatic valve of high-strength composite material with protective shell of ductile iron
With connection flange or BSP thread
Working pressure range: 0.2 – 16 bar

Downloads

Datasheet

Certificate(s)

Animation

AVK air valves for water ENG.mp4

Outline drawings

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AVK ref. no.	DN mm	Product PN Class	L mm	H3 mm	C mm	Theoretical weight/kg
701-100-60-11003	100	PN16	393	342	63,5 MM	27
701-200-60-01003	200	PN10	553	560	90 MM	118
701-200-60-11003	200	PN16	553	560	90 MM	118
701-250-60-01003	250	PN10	463	724	124 MM	151
701-250-60-11003	250	PN16	463	724	124 MM	151
701-300-60-01003	300	PN10	586	853	-	163
701-300-60-11003	300	PN16	586	853	-	163

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Components

1.	Shell	Ductile iron
2.	Body	PA, reinforced
3.	Threaded outlet	Brass
4.	Rolling seal	EPDM rubber
5.	Clamping key	PP, reinforced
6.	Float	Foamed PP
7.	O-ring	NBR rubber
8.	Base	Brass
9.	Valve seat	Bronze
10.	Seal	EPDM rubber
11.	Cover	Ductile iron
12.	O-ring	NBR rubber
13.	Bolt/nut	Steel, zinc plated
14.	Float	PC / stainless steel
15.	Body	Ductile iron